Synthesis of NHC-Iridium(III) Complexes Based on<i>N</i>-Iminoimidazolium Ylides and Their Use for the Amine Alkylation by Borrowing Hydrogen Catalysis
نویسندگان
چکیده
Anionic NHC ligands recently developed in our group, derived from N-iminoimidazolium ylides, were used to synthesize NHC-iridium(III) complexes. Their catalytic activities evaluated the amine alkylation of anilines using borrowing hydrogen catalysis. The high-yielding synthesis a small library complexes allowed rapid screening ideal steric bulk unit and basicity anionic tether for investigated model reaction. A bulky aromatic N group on imidazolidene moiety is required achieve high activity, latter proportional group. selected substrate scope reaction was performed, providing fair excellent yields desired alkylated anilines.
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ژورنال
عنوان ژورنال: Organometallics
سال: 2021
ISSN: ['1520-6041', '0276-7333']
DOI: https://doi.org/10.1021/acs.organomet.0c00726